海石蕊

例句：

1. 1. The seashell is a beautiful shell found on the beach.
   贝壳是海滩上美丽的贝壳。
2. 2. The seashell has been used for centuries as a symbol of peace and tranquility.
   贝壳被用作和平与宁静的象征数百年。
3. 3. The seashells are collected by divers from coral reefs around the world.
   潜水员从世界各地的珊瑚礁收集贝壳。